Flow Chart of Pigment Wash

Pigment wash:
Pigment wash is actually same as Normal Garment wash but the washing mill may charge you a little more because of the following.

When the garment is made of solid colour pigment dye, we normally would want the solid color to fade evenly in washing, leaving a prominent washed effect on the garment. In order to achieve the result as described above, it is important that the washing mill observes the following in washing:

To use hot water to wash (Normal wash needs about 40 degree C to wash). Pigment wash needs 50 to 60 degree C to wash so that the color would fade more evenly.
Pigment washed t-shirt
Fig: Pigment washed t-shirt
Do not stuff the tumble with too much. Try to load the tumble with 60 or 70% of its capacity so that the garments inside the tumble can turn “comfortably”. As a result, the colour of the garment fades evenly.

If you load the tumble full, the garment may turn out to be streaky after wash due to hard rubbing on the same spot inside the tumble for lack of random movement. In this article, I will explain pigment wash process with step by step.
Flow Chart of Pigment Wash:

Step 01: Desizing

Water is added (400 Lt)

Garments are added

Machine started running

320 gm Detergent added

320gm Caustic soda added

600gm Soda ash added

Temperature raise to 60°C

Time 20-60 minutes

Drop the liquor

Add water and cold wash

Step 02: Softening
Water is added (400 Lt)

Garments are added

Machine started running

240 gm Softener added

200gm Acetic acid added

160gm silicon softener added

Temperature Cold

Time 15 minutes

Drop the liquor

Unlaod garments on trolley

Step 03: Hydro Extracting
Load the garments on m/c

R.P.M 700-900

Time 3-5 minutes

Unload the garments on trolley

Step 04: Drying
Load the garments on dryer m/c

Temp 60- 70°C

Time 40-50 minutes

Time 10-15 minutes for cold dry

Unload the garments

Quality checking

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Mazharul Islam Kiron is a textile consultant and researcher on online business promotion. He is working with one European textile machinery company as a country agent. He is also a contributor of Wikipedia.

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